4D Molecular Therapeutics's top three insider shareholders as of April 17, 2026 are Global Investors Lp Viking (TenPercentOwner, 4.25Mn shares), David Kirn (Chief Executive Officer, 1.06Mn shares), David Kirn (Chief Executive Officer, 600.00K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Global Investors Lp Viking | - | 0 | 4,247,914 | 05 Jan, 2024 |
| David Kirn | Chief Executive Officer | 1,059,153 | 0 | 12 Jul, 2024 |
| David Kirn | Chief Executive Officer | 0 | 600,000 | 04 May, 2023 |
| Partners L P/Il Bvf | - | 87,911 | 0 | 13 Nov, 2024 |
| Ashoo Gupta | Vp, Finance And Controller | 47,055 | 0 | 24 Mar, 2026 |
| Charles Theuer | - | 41,684 | 0 | 16 Dec, 2025 |
| August J Moretti | Chief Financial Officer | 11,045 | 0 | 16 May, 2023 |
| Scott Bizily | Chief Legal Officer | 3,594 | 0 | 19 Dec, 2025 |
| Robert Young Kim | Chief Medical Officer | 1,043 | 0 | 07 Feb, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 25 Mar, 2026 | David Kirn | Stock Option (Right to Buy) | A | 750,000 | $0.00 | 750,000 | D | A |
| 25 Mar, 2026 | Christopher Paul Simms | Stock Option (Right to Buy) | A | 219,000 | $0.00 | 219,000 | D | A |
| 25 Mar, 2026 | Scott Bizily | Stock Option (Right to Buy) | A | 217,000 | $0.00 | 217,000 | D | A |
| 20 Mar, 2026 | Ashoo Gupta | Common Stock | A | 865 | - | 47,224 | D | M |
| 20 Mar, 2026 | Ashoo Gupta | Common Stock | D | 310 | $8.61 | 46,914 | D | S |
| 20 Mar, 2026 | Ashoo Gupta | Common Stock | A | 221 | - | 47,135 | D | M |
| 20 Mar, 2026 | Ashoo Gupta | Common Stock | D | 80 | $8.61 | 47,055 | D | S |
| 20 Mar, 2026 | Ashoo Gupta | Restricted Stock Units | D | 865 | $0.00 | 12,119 | D | M |
| 20 Mar, 2026 | Ashoo Gupta | Restricted Stock Units | D | 221 | $0.00 | 3,087 | D | M |
| 05 Jan, 2026 | Glenn Sblendorio | Stock Option (Right to Buy) | A | 45,000 | $0.00 | 45,000 | D | A |
| 20 Dec, 2025 | Ashoo Gupta | Common Stock | A | 866 | - | 46,528 | D | M |
| 20 Dec, 2025 | Ashoo Gupta | Common Stock | D | 310 | $8.68 | 46,218 | D | S |
| 20 Dec, 2025 | Ashoo Gupta | Common Stock | A | 220 | - | 46,438 | D | M |
| 20 Dec, 2025 | Ashoo Gupta | Common Stock | D | 79 | $8.68 | 46,359 | D | S |
| 20 Dec, 2025 | Ashoo Gupta | Restricted Stock Units | D | 866 | $0.00 | 12,984 | D | M |
| 20 Dec, 2025 | Ashoo Gupta | Restricted Stock Units | D | 220 | $0.00 | 3,308 | D | M |
| 16 Dec, 2025 | Scott Bizily | Common Stock | A | 1,635 | $4.14 | 5,229 | D | M |
| 16 Dec, 2025 | Scott Bizily | Common Stock | D | 1,635 | $10.90 | 3,594 | D | S |
| 16 Dec, 2025 | Scott Bizily | Stock Option (Right to Buy) | D | 1,635 | $0.00 | 73,595 | D | M |
| 12 Dec, 2025 | Charles Theuer | Common Stock | A | 9,333 | $1.14 | 41,684 | D | M |